<html>
<head>
  <title>DNS查询</title>
  <meta charset="utf-8" http-equiv="content-type" content="text/html">
</head>
<body>
  <h1 style="text-align: center;">DNS 查询工具</h1>
  <div style="text-align: center;">
    <form action="parse" method="post">
      查询DNS：<input type="text" name="search_dns"/>
      <input type="submit" value="查询">
    </form>
  </div>
</body>
</html>